123430444100 has 36 divisors (see below), whose sum is σ = 268543478784. Its totient is φ = 49243253280.

The previous prime is 123430444091. The next prime is 123430444129. The reversal of 123430444100 is 1444034321.

It is a self number, because there is not a number n which added to its sum of digits gives 123430444100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1573064 + ... + 1649663.

Almost surely, 2^123430444100 is an apocalyptic number.

123430444100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123430444100 is an abundant number, since it is smaller than the sum of its proper divisors (145113034684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123430444100 is a wasteful number, since it uses less digits than its factorization.

123430444100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223124 (or 3223117 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 123430444100 its reverse (1444034321), we get a palindrome (124874478421).

The spelling of 123430444100 in words is "one hundred twenty-three billion, four hundred thirty million, four hundred forty-four thousand, one hundred".